<html>
<head>
<meta charset="utf-8">
<style>
body > div {
  width:225px;
  height:225px;
}
body > div > div {
width:200px;
  height:220px;
  border:1px solid red;
  line-height:20px;
  text-transform: full-width;
}
.v-rl { writing-mode:vertical-rl; text-orientation:upright }
</style>

</head>

<body>
<div>
<div id="test2" class="v-rl">
 A B C D E
 F G H I J
 K L M N O
 P Q R S T
 U V W X Y
</div>
</div>

</body>
</html>
